Necessity of Circulating Cooling Water Treatment in Steel Mill

The consumption of circulating cooling water accounts for 50%~90% of the total water consumption of iron and steel industry. Different supplemental water sources have an impact on both the period of the problem and the degree of harm. As in the continuous industrial production process, with the extension of the operation cycle, the concentration ratio increases, and suspended matter and dust substances breeding by microorganisms lead to changes in water quality, lead to heat exchanger scaling, corrosion and pipeline impurities and suspended matter in the continuous accumulation of solid matter and other problems occur frequently, increase energy consumption, reduce the service life of equipment, and form security risks. Controlling the water quality parameters reasonably can improve the water reuse rate, save water resources, and greatly improve the overall situation of circulating cooling water. First of all, the cost of water is relatively high. Second, energy cycle efficiency is not high. Third, improve the concept and awareness of environmental protection in the whole society. Fourth, the lack of sound environmental protection policies. With the progress of society, people attach more and more importance to environmental protection. Therefore, in order to seek development, iron and steel enterprises pay more attention to the discharge of wastewater and the pursuit of zero discharge goal.